A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person.SONY DSC Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. Nick Monacelli/News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. News10

A private collector in Portola Valley, near Stanford, is putting up dozens of tanks for auction. During a public showing on Thursday, July 10, 2014, visitors got to see more than 80 tanks, gun parts and miscellaneous military equipment in person. News10